(Updated 4/2/2023)

As the title suggest, anyone knows the name of all Rare Ships ?
As far as I know, there is no specify ports where you need to build them. Just high level Shipbuilding (12)

Shipbuilding is Max at 12. Previous research shows little to no difference with regards to getting rarers boats. However this is subjected to future patches.

Previous attempts also shows that you DO NOT NEED to add additional materials (Rubies/Emerald/Etc) to get rare boats. But having them suggest higher rate of rare boats. (Subjected to RNG)

Rare SOTL - 65 Days
Rare Clipper- 70Days

As far as Ive known: (All Build with 4 Rubies)
(SHIP OF THE LINE - Rare ship variants)
1) Victory - Extremely good at broadside fires due to 50% loading speed (Sailing power too)
2) Santisima Trinidad - Extremely good for Boarding + Ram damage
3) Soleil Royal - Steering and Ship Morale (+Anti-Aging)
4) De Zeven Provincien - 50% Naval Mine reload speed

(CLIPPER)
1) Tea Clipper - (Not rare but a variant)(Slightly better than Normal Clipper)
2) Cutty Slark - Rare + Really fast , extra cargo and great damage and wet reduction
3) Areil - Rare + (Basically a weaker version of Cutty Slark)

(BRIG)
1) Beagle (Rare)- Sail Power(16) / GunPort (3) / Steering (20) / Loading Speed (50) / Naval mine (50)
2) Armed Privateer (Variant) - Extra crew, gunports and HP
3) Jackdaw (Rare) - Gunport (4) / Loading Speed (50) / Naval Mines (50) / Durability (15) / Ram Damage (20)

(SCHOONER)
1) Mercury (Rare) - kind of combat adventure hybrid

(LARGE GALLEON)
1) San Juan (Rare) - Really good warship with great durability for what it is
2) San Martin (Rare) - Gunports (5) / boarding damage (20) / Durability (12) / Steering (20)
3) Manila Galleon (Variant) - Large Galleon with Cargo Dampness + Leakage
4) Spanish Galleon (Variant) - AgingSpeed(50) / Rudder Durability(15) / Fire Hazard (30)

(CARRACK)
1) Santa Maria (Rare)
2) Victoria (Rare)

(♥♥♥♥♥♥♥)
1) Gan Zheng (Variant) - Trade Variant
2) Haicang Ship (Variant)
3) Kailangchuan (Variant)
4) Picket Boat (Variant)

(Galleon)
1) Corvette (Variant)
2) MayFlower (Rare)

(Caravel)
1) Crommesteven (Variant)
2) Mediterranean Two-Masted Cargo (Variant)

(Galeass Galley)
1) Venetian Gunship (Variant)
2) Large Ottoman Galley (Variant)

(Arab Windsail Ship)
1) Armed Arab Clipper (Variant)
2) Arab Cargo Clipper (Variant)

(Arabic Galley)
1) Assault Galley (Variant)

(Shachuan)
1) Canal Ship (Variant)

(Guangchuan)
1) Lorcha (Variant)

(Large ♥♥♥♥♥@n) - (Rare variants appears to have same stats with different names)
1) Changning/HuiKang/Anji/Qinghe (Rare) - Warehouse (10) / Durability (12) / Cargo Dampness (30) / Cargo Depletion (30 / Leakage (30)

Credits
- Torpon
- Shintai
-titanopteryx
-oroelf
-Antiga